Charge Wire 24in 4-Gauge w/Boot

The Charge Wire 24in 4-Gauge w/Boot from TUFF-STUFF is a critical component in any high-performance charging or electrical system upgrade. This 24-inch cable serves as the primary charge line in battery isolators, dual-battery setups, and auxiliary power distribution systems common in overland vehicles, off-road trucks, and heavily modified rigs. Whether you're installing a secondary auxiliary battery for winch operations, onboard air compressors, or extended expedition work, this charge wire delivers the current capacity and durability needed for reliable power delivery under demanding conditions.

At 4-gauge diameter, this cable is engineered to handle substantial amperage loads with minimal voltage drop—essential when running high-draw accessories from an auxiliary battery bank or isolator relay system. The boot-equipped design provides strain relief and environmental sealing at connection points, preventing corrosion and arc faults in harsh off-road or marine environments. The 24-inch length positions it as an ideal charge wire between a vehicle's primary alternator output and a battery isolator, or from an isolator to a secondary battery location, fitting standard under-hood routing geometry in most trucks and SUVs. Heavy-gauge copper construction ensures superior conductivity and longevity compared to lighter alternatives.

Mechanics and DIY enthusiasts upgrading dual-battery systems, installing auxiliary power for recovery gear, or building expedition vehicles will recognize the Charge Wire 24in 4-Gauge w/Boot as a purpose-built solution for main charging circuits. It pairs seamlessly with battery isolators (VSR, solenoid, or split-charge relays) and is sized for vehicles where the alternator-to-isolator or isolator-to-aux-battery run requires approximately two feet of cable. Proper installation includes securing the cable with adhesive-lined loom and ensuring all terminations are crimped and sealed with dielectric grease for maximum reliability in temperature cycling and vibration-prone environments. Use margin:0;